Led by recording artist Janelle Monae and Geneva Reed-Veal, Sandra Bland’s mother, about 200 activists gathered in protest in Chicago’s Millennium Park on Monday to protest brutality by police before marching to City Hall to stage a die-in. In solidarity with the #BlackLivesMatter movement, Monae recently releasing a new single, “Hell You Talmbout,” that has become a “battle cry and ode to the movement,” according to the Chicago Sun-Times. “I come here as a black woman. We come as a black man, black human beings,” Monae told the crowd. Reed-Veal, whose 28-year-old daughter, Sandra Bland, was found dead in her jail cell after an arrest in Texas last month, refutes authorities’ claims that her daughter committed suicide. The pair held the rally and die-in in hopes of raising awareness for #RiseUpOctober, a call for national mass protests against police brutality scheduled to be held October 22-24.